L5397/L5392/L5391 - Yale L5300 Series Medium Duty Tubular Lever Set 8 Standard: ANSI / BHMA A 156.2.2003 Testing Cycles: Tested up to 175,000 cycles Materials: - Chassis: Steel - Latch and Bolt: Zinc - Strike: Steel - Knob: Zinc - Rose: Brass Backset: 60mm / 70mm Door Thickness: 35-50mm Function: Residental and light commercial applications Cylinder: Solid Brass 5-pin tumbler cylinder No. of Keys: 3 pcs of nickel plated brass key Master key available upon request Finish Code: Polished Brass (US3), Antique Brass (US5), Antique Copper (US11), Satin Nickel (US15) L5337/L5332/L5331 - Yale L5300 Series Medium Duty Tubular Lever Set 3 L6227/L6222/L6221 - Yale L6200 Series Medium Duty Tubular Lever Set 2 L5327/L5322/L5321 - Yale L5300 Series Medium Duty Tubular Lever Set 2